# rollup v4.63.0

- Product: rollup (https://whatsnew.fyi/product/rollup)
- Vendor: rollup
- Date: 2026-08-25
- Version: v4.63.0
- Original notes: https://github.com/rollup/rollup/releases/tag/v4.63.0
- Permalink: https://whatsnew.fyi/product/rollup/releases/v4.63.0

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- **changed** — Allow to analyze function return values in many more cases

##### 4.63.0

_2026-08-25_

###### Features

- Allow to analyze function return values in many more cases (#6065)

###### Pull Requests

- [#6065](https://github.com/rollup/rollup/pull/6065): feat: improve function return value tracking (@cyyynthia, @lukastaegert)
- [#6482](https://github.com/rollup/rollup/pull/6482): Remove unused rendered module sources map (@yoominho91, @irontaek, @lukastaegert)
- [#6483](https://github.com/rollup/rollup/pull/6483): chore(deps): update minor/patch updates (@renovate[bot])
- [#6484](https://github.com/rollup/rollup/pull/6484): fix(deps): update swc monorepo (major) (@renovate[bot], @lukastaegert)
- [#6485](https://github.com/rollup/rollup/pull/6485): chore(deps): lock file maintenance (@renovate[bot], @lukastaegert)
- [#6486](https://github.com/rollup/rollup/pull/6486): chore(deps): lock file maintenance (@renovate[bot])